Marni
A shortened form of feminine names like Marianne or Marina.
Name Census estimates that about 3,035 living Americans carry the first name Marni. The name is used almost exclusively for girls. The average person named Marni today is around 47 years old, and the year with the single highest number of Marni births was 1969 (253 babies).
This page is the full Name Census profile for Marni. Below you will find a gender breakdown showing how the name splits between male and female registrations, a year-by-year popularity chart stretching back to 1880, decade-level totals, the top US states for this name, its meaning and etymology, and a set of frequently asked questions with data-backed answers.
For a British comparison, Name Census UK has a UK baby-name profile for Marni with official rankings and popularity over time.
People living today
3.0K
~ 1 in 112,934 Americans
Peak year
1969
253 babies that year
Average age
47
years old
1972 SSA rank
#5,478
Tracked since 1946
Census
Marni in the 2020 Census
The 2020 Census recorded 3,175 people with the first name Marni, which placed it at #5,420 in the published first-name tables. This is a snapshot of people who already had the name at the time of the Census.
The SSA sections elsewhere on this page answer a different question: how often parents gave the name to babies over time. The "people living today" figure on this page is different again: it is a current estimate built from SSA birth records and age-based survival rates, so the two numbers are not expected to match exactly.
2020 Census rank
#5,420
National first-name rank
People counted
3.2K
3,175 in the published race/origin table
Per 100,000
1.1
People with this name in 2020
Largest reported group
White
89.6% of people with this name
Demographics
Ancestry and ethnicity for Marni
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Marni is White at 89.6%. The next largest groups are Hispanic (3.3%) and Two or More Races (3.1%). These figures describe the people who had the name in 2020, not any inherent property of the name itself.
The bar chart below shows how people with the first name Marni described their own race and ethnicity on the 2020 Census form. The Census Bureau groups responses into six broad categories: White, Black or African American, Hispanic or Latino, Asian and Pacific Islander, American Indian and Alaska Native, and Two or More Races. When a category has too few respondents for a given name, the Bureau suppresses the figure to protect individual privacy, which is why some names show fewer than six slices.
Percentages are shown so the breakdown is easy to read across every published category. Because the 2020 Census first-name file also includes raw headcounts for each group, Name Census can show those alongside the percentages in the legend and hover tooltip.
Keep in mind that these are self-reported numbers. A first name does not determine a person's race or ethnicity, and the distribution you see here reflects the specific population who happened to carry the name Marni at the time of the 2020 Census, not any inherent property of the name itself.
- White89.6% · 2,846
- Hispanic or Latino3.3% · 105
- Two or more races3.1% · 100
- Asian and Pacific Islander1.8% · 58
- Black or African American1.7% · 54
- American Indian and Alaska Native0.4% · 12
Gender
Gender distribution for Marni
Out of the 3,391 babies given the name Marni since 1880, 99.9% were registered as female. The name sits firmly on the female side of the spectrum, with only a handful of male registrations across the entire dataset.
Marni as a male name
- Ranked #5,478 in 1972
- 5 male births in 1972
- Peak: 1972 (5 births)
Marni as a female name
- Ranked #9,968 in 2024
- 10 female births in 2024
- Peak: 1969 (253 births)
2020 Census snapshot
In the 2020 Census sex table, Marni appears almost entirely female. Of the 3,179 people counted with this name, 99.3% were female and only a very small share were male.
Popularity
Marni: popularity over time
The SSA tracks Marni from the 1940s through to the 2020s, spanning 9 decades of birth certificate data. The biggest single decade for the name was the 1970s, with 1,320 total registrations. Usage has dropped considerably from its 1970s peak. The most recent decade brought in only a fraction of the registrations that the name once attracted.
Babies born per year
Decades
Marni by decade
The table below breaks the full SSA timeline into ten-year windows. Each row shows how many male and female babies were given the name Marni during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Geography
Where Marnis live
The SSA's state-level files cover 24 states and territories. New York, California, Illinois recorded the most babies named Marni, while Oklahoma, North Carolina, Montana recorded the fewest. The average across all reporting states is about 68 registrations each.
Origin
Meaning and history of Marni
The given name Marni has its origins in the Hebrew language. It is believed to be a diminutive form of the Hebrew name Miriam, which means "bitter" or "beloved". The name Miriam is found in the Bible, where it refers to the sister of Moses and Aaron.
Marni is thought to have emerged as a name in its own right during the Middle Ages, particularly in Italian and other Romance language-speaking regions. It may have been influenced by the Italian word "marna", meaning "marl" or a type of soil.
One of the earliest recorded instances of the name Marni can be found in the 13th century. Marni di Navarra was an Italian noblewoman who lived in the late 1200s and was known for her patronage of the arts and literature.
In the 15th century, Marni Baldassar was an influential Venetian philosopher and writer whose works explored themes of ethics and morality. She is considered an important figure in the Italian Renaissance.
During the 16th century, Marni Bianchi (1516-1594) was a renowned Italian painter and fresco artist. Her works adorned several churches and palaces in her native Florence.
In the 18th century, Marni Valsecchi (1724-1806) was an Italian mathematician and astronomer who made significant contributions to the study of celestial mechanics and the calculation of planetary orbits.
Another notable figure with the name Marni was Marni Karvosius (1856-1923), a Lithuanian-American writer and activist who campaigned for women's rights and social justice in the early 20th century.
Throughout history, the name Marni has been associated with individuals from diverse backgrounds, reflecting its enduring presence across various cultures and time periods.
People
Marni + last name combinations
How many people share a full name with Marni as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with M
Other first names starting with M with a similar number of bearers.
FAQ
Marni: questions and answers
How many people in the U.S. are named Marni?
Name Census puts the figure at roughly 3,035 living Americans. We arrive at this by taking every SSA birth registration for Marni going back to 1880 and adjusting each cohort for expected survival using CDC actuarial life tables. The result is an age-weighted living-bearer count, not a raw birth total. That works out to about 1 in 112,934 US residents.
Is Marni a common name?
We classify Marni as "Rare". It ranks above 95.2% of all first names in the SSA dataset by living bearers. Across the full history of the data, 3,391 babies have been registered with this name.
When was Marni most popular?
The single biggest year for Marni was 1969, when 253 babies received the name. The fact that the average living Marni is about 47 years old gives you a rough sense of which era contributed the most bearers who are still alive today.
How common was Marni in the 2020 Census?
The published 2020 Census first-name tables recorded 3,175 people with the name Marni, or 1.05 per 100,000 residents. That placed it at #5,420 in the national Census ranking for first names.
Why is the Census count different from the living estimate?
Because they measure different things. The Census figure is a count of people who had the name Marni in 2020. The living estimate aims to answer a current question instead: how many people with the name are alive today, based on SSA birth records and age-based survival rates. Since one number is a 2020 snapshot and the other is a present-day estimate, they are not expected to be identical.
What does the Census say about the gender split for Marni?
In the 2020 Census sex table, Marni appears almost entirely female. Of the 3,179 people counted with this name, 99.3% were female and only a very small share were male. The Census view is a snapshot of people living with the name in 2020, while the SSA section above tracks births across time.
What does the Census say about the background of people named Marni?
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Marni is White at 89.6%. The next largest groups are Hispanic (3.3%) and Two or More Races (3.1%). These figures describe the people who had the name in 2020, not any inherent property of the name itself. The percentages in the chart above come from self-reported race and Hispanic-origin responses in the 2020 Census.
Which group reports the name Marni most often in the Census?
White is the largest reported group for people named Marni in the 2020 Census, accounting for 89.6% (2,846 people in the published table).
Why can the Census sex total and race total differ slightly?
The Census Bureau published separate 2020 tables for sex and for race/Hispanic origin, and the released figures can differ slightly because of privacy protection in the public files. That is why this page treats the gender section and the race/origin section as two related snapshots instead of forcing them into one identical total.
Does every first name have Census demographic data?
No. The public Census first-name release only includes names that met the Bureau's publication rules, so many rarer names in the SSA files have no Census demographic snapshot. When that happens, the SSA trend, gender history, and state sections still appear, but the 2020 Census demographic sections are omitted.
What does the SSA popularity chart show?
The chart tracks births, not the number of people alive with the name today. Each point shows how many babies were given the name Marni in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Marni a female name?
Yes, 99.9% of people registered as Marni in the SSA data are female. You can see the full per-sex comparison in the gender distribution section above, which includes the latest year rank, birth count, and peak year for each sex.
Is Marni still being used today?
Yes. The SSA still recorded Marni in 2024, and the page above shows its latest-year rank where available. A name can be well past its peak and still remain in steady use, especially if it built up a large population over earlier decades.
Why can a name have a lot of living bearers even if it is not trendy now?
Because living-bearer counts and current baby-name popularity measure different things. A name like Marni can build up a very large population over many decades, even if fewer parents are choosing it now than they did at its peak.
Where does this data come from?
First-name figures come from the Social Security Administration's national baby name files, which cover every name on a birth certificate from 1880 to 2024. Living-bearer estimates layer in CDC actuarial life tables broken out by sex to account for mortality. The population baseline (342,754,338) is the Census Bureau's latest national estimate. You can read the full calculation on our methodology page.
How many people are named Marni?
Find out how many people have the name Marni on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.